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  1. Aug 14, 2023 · Fever of unknown origin (FUO) was first described by Dr. Petersdorf and Dr. Beesom in 1961. FUO was defined as a temperature of 101 degrees Fahrenheit (38.3 degrees Centigrade) or higher with a minimum duration of three weeks without an established diagnosis after an intensive one-week investigation in the hospital.

    • Ilona Brown, Nancy A. Finnigan
    • 2023/08/14
    • 2021
  2. Feb 2, 2022 · In 1961, Petersdorf and Beeson defined fever of unknown origin (FUO) as a temperature of 38.3°C or higher for at least 3 weeks without a diagnosis, despite 1 week of inpatient...

  3. Fever of unknown origin (FUO) was first defined by Petersdorf and Beeson in 1961, who defined FUO as body temperature above 38.3°C (101°F) on three or more occasions and a duration of illness of at least three weeks, in which no diagnosis was made after one week of hospital admission. 1 In the following years this definition was modified.

  4. Jan 1, 2012 · Classic definition of fever of unknown origin (FUO) is a fever for more than 3 weeks, a temperature of 38.3 C or higher on several occasions, and no definitive diagnosis after 1 week of hospital evaluation.

  5. Fever of unknown origin. Definition. Revised. Conventional. 1 Introduction. The febrile patients with unknown origin are the most challenging cases for infectious diseases physicians.

  6. Nov 28, 2023 · Clinicians commonly refer to a febrile illness without an initially obvious etiology as fever of unknown origin (FUO). However, most febrile illnesses either resolve before a diagnosis can be made or develop distinguishing characteristics that lead to a diagnosis.

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  8. Fever of unknown origin is defined as a clinically documented temperature of 101°F or higher on several occasions, coupled with an unrevealing diagnostic workup. The differential...

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